Table 1: Baseline demographics, arthritis medication usage, weight status, physical function, and health-related quality of life measures ( )a.

% or mean (SD)bRange

Demographic characteristics
Age, years40156.3 (10.7)19–87
Gender401
 Men5714.2
 Women34485.8
Race400
 White 25664.0
 African American 14135.3
 American Indian 20.5
 Multiracial 10.3
Education400
 Less than a high school graduate 61.5
 High school graduate or GED 4611.5
 Some colleges 10526.3
 College graduate 24360.8
Employment status 399
 Employed for wages25864.7
 Self-employed153.8
 Out of work 143.5
 A homemaker71.8
 A student30.8
 Retired9022.6
 Unable to work 123.0

Arthritis medication usage 401
1 arthritis medication 34185.0
Acetaminophen 13934.7
NSAIDS25463.3
Steroids 328.0
Narcotics 6716.7
DMARD 4611.5

Weight status
BMI, kg/m240133.1 (8.3)15.8–60.7
 Underweight (BMI < 18.5) 10.25
 Normal weight (18.5 BMI < 25)5814.5
 Overweight (25 BMI < 30)11428.4
 Obese (BMI ≥ 30)22856.9

Physical activity
Hrs/wk of moderate to vigorous physical activity 4013.4 (3.8)0–25.5
Physical function measures
 Six minute walk, m 399494.1 (91.2)151.5–721.6
 Chair stands, no. stands40110.0 (3.5)0–24.0
 Seated reach, cm 39921.7 (9.9)−11.5–49.0
 Walking velocity, m/s 3971.1 (2.2)0.4–1.7
 Grip strength, kg 40127.1 (10.2)4.5–74.0

Health-related quality of life
Depressionc4016.5 (5.1)0–28.0
Stiffnessd4005.3 (2.5)0–10.0
Paind4014.7 (2.3)0–10.0
Fatigued4015.0 (2.6)0–10.0
Disabilitye4010.6 (0.5)0–2.0
Quality of life, physicalf4006.9 (9.1)0–30.0
 0 days 10726.75
 1 day–14 days22255.5
 >14 days7117.75
Quality of life, mentalf3995.2 (7.9)0–30.0
 0 days14837.09
 1 day–14 days19649.13
 >14 days5513.78

Some s are less than 401 due to participant refusal to complete measure.
May not add to 100% due to rounding.
Scores range from 0 to 30, with higher score indicating greater depressive symptom.
Scores range from 0 to 10, with higher scores indicating more severe symptoms.
Scores range from 0 to 3, with high scores indicating higher impairment.
Scores range from 0 to 30, with higher score indicating more bad days.